import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.w3c.dom.Document;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.IOException;

public class XmlTest {
    public static void main(String[] args) throws ParserConfigurationException, IOException, SAXException {
        //得到DOM解析的工厂实例
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        //从DOM工厂获得DOM解析器
        DocumentBuilder db = dbf.newDocumentBuilder();
        //解析XML文档，得到一个Document对象，即DOM树
        Document doc = db.parse("src/book.xml");
        //得到所有Brand节点列表信息
        NodeList brandList = doc.getElementsByTagName("Brand");
        //循环Book信息
        for (int i = 0; i < brandList.getLength(); i++) {
            //获取第i个Brand元素信息
            Node brand = brandList.item(i);
            //获取第i个Brand元素的name属性的值
            Element element = (Element) brand;
            String attrValue = element.getAttribute("name");
            //获取第i个Brand元素的所有子元素的name属性值
            NodeList types = element.getChildNodes();
            for (int j = 0; j < types.getLength(); j++) {
                Element typeElement;
                Node node = types.item(j);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    typeElement = (Element) node;
                    String type = typeElement.getAttribute("name");
                    System.out.println("手机" + attrValue + "\t" + type);
                }
            }
        }
    }
}
